almost perfect riftstone. After the passage turns east, you have 30 feet of corridor and then north/south openings. It should be 20 feet of corridor and then north/south openings. Also the south corridor goes 10 feet, THEN turns west (i.e., in the 20' section) so lengthen the south corridor by 10 feet

The 30x50 sawdust room (and associated passages/rooms) needs to be shifted 10 feet eastwards; (after the door from the hallway opens, that passage goes another 5 feet before opening into the room)

I was careless in checking where you started your diagonal walls in the southern corridor. after the last statue on the east, the east wall extends another 10 feet south before slanting down twice. The west wall starts to slant at the same place you have it, but will have four diagonal sections instead of 3